A Dumfries restaurant business has fallen victim to the coronavirus crisis.Stuart and Sharon Black said it is with “the greatest sadness” that they’ve been forced to permanently close the doors of the Doonhamer Bistro.Devastated Stuart, 54, said: “We invested everything we had into the business when we took it over.“This has been such a devastating time for us and we were left with no option but to close our doors.“Having the Doonhamer was our dream and we thought we’d be there until old age.“However we are both asthmatic so were in no position to adapt to doing takeaways when the lockdown measures came in.“We have to be in total isolation as our parents also all have underlying health conditions.“We are both in bits; just devastated, but